Fuel Temperature Sensor: Description and Operation

Fuel Temperature Sensor (DTC: 0402)
The fuel temperature sensor, built into the fuel tube, senses fuel temperature. When the fuel temperature is higher than specified, the ECM (ECCS control module) turns the fuel pressure regulator control solenoid valve ON and raises fuel pressure.
* Freeze frame data is not stored in the ECM for fuel temperature sensor. The MIL will not light up for a fuel temperature sensor malfunction.